Decks Requirements From Fema
Requirements
If a deck is structurally attached to a V-zone building, the bottom of the lowest horizontal member of the deck must be elevated to or above the elevation of the bottom of the building’s lowest horizontal member. A deck built below the Design Flood Elevation (DFE) must be structurally independent of the main building and must not cause an obstruction.
If an at-grade, structurally independent deck is to be constructed, a design professional must evaluate the proposed deck to determine whether it will adversely affect the building and nearby buildings (e.g., by diverting flood flows or creating damaging debris).
Recommendations
Decks should be built on the same type of foundation as the primary building. Decks should be structurally independent of the primary structure and designed to resist the expected wind and water forces. Alternatively, decks can be cantilevered from the primary structure; this technique can minimize the need for additional foundation members. A “breakaway deck” design is discouraged because of the large debris that can result. A “breakaway deck” on the seaward side poses a damage hazard to the primary structure. Decks should be constructed of flood-resistant materials, and all fasteners should be made of corrosion-resistant materials.
Interested in
remodeling your home? Contact
a Local Builder in your area to discuss your home design plan ideas today.
|
